Peso de abate de machos não-castrados para produção do bovino jovem. 2. Peso, idade e características da carcaça

Cruz, G. M. da; Túllio, R. R.; Esteves, S. N.; Alencar, M. M. de; Cordeiro, C. A.

doi:10.1590/s1516-35982004000300013

Cited by 20 publications

(18 citation statements)

References 12 publications

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“…Rib eye area increased linearly as slaughter weight increased, which was similar to the results reported in the literature, in which increase in body weight at slaughter resulted in greater REA, both in late breeds, like Charolais (Restle et al, 1997); early breeds, like Aberdeen Angus (Costa et al, 2002b); crossings between various breeds (Cruz et al, 2004b); and Zebu breeds, like Gyr, Guzerat, Tabapuã and Nellore (Jorge et al, 1999). The rib eye area expressed in 100 kg cold carcass decreased with increase in body weight, agreeing with the results observed in the literature, demonstrating linear decrease from 27 to 24 and from 26.2 to 23.2 cm 2 /100 kg carcass, with increase in slaughter weight from 550 to 700, in crossbred Blonde D'Aquitaine × Charolais (Patterson et al, 1994) and from 440 to 507 kg in crossbred Aberdeen Angus × Brahman (Huffman et al, 1990).…”

Section: Resultssupporting

confidence: 89%

Animal performance and carcass characteristics of Nellore young bulls fed coated or uncoated urea slaughtered at different weights

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et al. 2013

R. Bras. Zootec.

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-The objective of this study was to evaluate animal performance and carcass characteristics of 64 Nellore young bulls at 22 months of age finished in a feedlot and slaughtered at five body weights (350; 455; 485; 555 and 580 kg) fed diets containing coated or uncoated urea. The experimental design adopted was completely randomized, set in a 4 × 2 factorial arrangement, and for the variables assessed in the control animals, it was 5 × 2. No effect of interaction between slaughter weights and diets were observed, so the variables were analyzed separately, compared by polynomial contrasts and by the F test, respectively. The time animals remained in the feedlot to reach slaughter weights was 66, 88, 145 and 194 days. Average daily gain (ADG) showed quadratic behavior, with a maximum of 1.44 kg/day with animals of 491.7 kg. Dry matter intake (DMI) (kg/day) was similar in all the treatments, but it decreased linearly as body weight increased. The bionutritional efficiency worsened linearly as body weight rose. The elevation in slaughter weight resulted in linear decrease in the percentage of beef round and increase in forequarter. Backfat thickness and rib eye area of the longissimus increased linearly and the percentages of muscle and protein in the carcass reduced and those of fat and ether extract increased linearly as body weight increased. Average daily gain, DMI, feed efficiency and carcass characteristics were not affected by diets containing coated or uncoated urea. However, animals fed coated urea presenter better crude fiber and neutral detergent fiber intake.

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Section: Resultssupporting

confidence: 89%

Animal performance and carcass characteristics of Nellore young bulls fed coated or uncoated urea slaughtered at different weights

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et al. 2013

R. Bras. Zootec.

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“…The carcass yield values observed were lower than the 57.0% reported by Cruz et al (2004) in a study with a group of animals with an average live weight of 400 kg, an average age at slaughter of 17.5 months, and 150 days in the feedlot. Freitas et al (2008) observed a value of 54.4%, similar to that found in the present study (52.0%), with 100 days in the feedlot, in animals slaughtered at 22 months of age with 395 kg LW.…”

Section: Resultscontrasting

confidence: 72%

“…The animals in the present study remained in the feedlot for 85 days after 32 months of age, with an average live weight at slaughter of approximately 450 kg. The yield differences between these studies may be explained by the longer feedlot period reported by Cruz et al (2004).…”

Section: Resultsmentioning

confidence: 86%

Carcass and meat traits of feedlot Nellore bulls fed different dietary energy sources

et al. 2016

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-The objective of this experimental study was to evaluate the effects of different dietary energy sources on the carcass and meat traits of feedlot Nellore bulls. A total of 48 Nellore bulls at 32 months of age with 354.35±19.56 kg body weight were studied for 85 days. The bulls were allotted to four groups of 12 individuals: Whole corn grain -diet based on whole corn grain; Ground corn -diet based on ground corn grain; Citrus pulp -diet based on citrus pulp; and Steam-flaked corn -diet based on steam-flaked corn. Diets did not influence carcass quality or meat quality. Average values for fat depth, rib eye area, shear force, total cooking losses, and carcass yield were 4.97 mm, 74.71 cm 2 , 5.85 kgf, 26.82%, and 52.0%, respectively. Based on the quantitative and qualitative analysis of this study, there is no restriction for the adoption of any of the tested diets in feedlots with Nellore bulls and the evaluated energy sources may be used to replace ground corn grain.

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“…On the other hand, did not detect any differences in hindquarter yield when analyzing the carcasses of 24-monthold Hereford cows and steers and obtained values of 48.5 and 48.9%, respectively. Cruz et al (2004), distributed purebred and crossbred steers into three different slaughter weights, and observed that, in general, hindquarter and forequarter and/or rib yields increased as slaughter weight increased.…”

Section: Methodsmentioning

confidence: 99%

Meat yield of culled cow and steer carcasses

et al. 2009

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-The experiment evaluated the meat yield of prepared beef cuts, bone and trimmings of steer and culled cow carcasses. Culled 72-month-old Braford cows, 496 kg live weight and 36-month-old steers, 494 kg live weight were used, all from the same herd and finished on ryegrass pasture. A randomized complete design, with two treatments and 15 replications, was used. Hot carcass weight was lower for cows (248 kg) than for steers (263 kg). Steer carcasses presented better conformation, lower chilling loss, shorter (128.6 vs. 137.7 cm), with longer and thicker limbs compared to cows and similar fat finishing. Steer carcasses showed, compared to cow carcasses, always in the same order, similar side cut yield (13.5 vs. 13.4%), higher forequarter yield (38.4 vs. 37.2%), and lower hindquarter yield (48.1 vs. 48.9%), resulting lower yields of the sub-primal cuts full rump and sirloin, lower rump UK trim, rump tail and striploin. Steer and cow carcasses were similar in total yield of prepared meat cuts (77.8 vs. 77.6%), discarded bone (17.4 vs. 17.9%), discarded trimmings (4.54 vs. 4.09%), and losses inherent to the deboning process (0.34 vs. 0.34%). The results showed that cow carcasses are longer, have shorter and thinner limbs, have higher hindquarter and lower of forequarter yields, but the total yield of prepared meat cuts were similar between cow and steer carcasses.Key Words: Braford, commercial cuts, deboning, hindquarter, primal cuts, retail cuts Rendimento de cortes preparados de carcaças de vacas e de novilhosRESUMO -Avaliaram-se os rendimentos de cortes cárneos preparados, de osso e de retalho descartado das carcaças de animais de novilhos e vacas de descarte. Utilizaram-se 15 vacas de 72 meses com peso vivo de 496 kg e 15 novilhos de 36 meses com peso vivo de 494 kg, todos da raça Braford e de mesmo rebanho, terminados em pastagem de azevém.O experimento foi realizado em delineamento inteiramente casualizado, com duas categorias animais, cada uma com 15 repetições. O peso de carcaça quente das vacas de descarte (248 kg) foi inferior ao dos novilhos (263 kg). As carcaças dos novilhos apresentaram melhor conformação, com menor quebra no resfriamento, e foram mais curtas (128,6 vs 137,7 cm), com membros mais longos e espessos em comparação às carcaças das vacas. A porcentagem de gordura de cobertura foi similar entre as categorias. Em comparação às vacas de descarte, os novilhos apresentaram rendimento similar de costilhar (13,5 vs 13,4%), maior de dianteiro (38,4 vs 37,2%) e menor de serrote (48.1 vs 48.9%). Novilhos apresentaram menor rendimento de alcatra e lombo e menor rendimento de miolo da alcatra, maminha e contrafilé. As carcaças de vacas e de novilhos são similares quanto aos rendimentos totais de cortes cárneos preparados (77,8 vs 77,6%), osso descartado (17,5 vs 17,9%), retalho descartado (4,54 vs 4,09%) e perdas inerentes (0,34 vs 0,34%). Vacas têm carcaça mais comprida, membros mais curtos e finos, maior rendimento de serrote, menor de dianteiro e similar de costilhar, mas o rendimento total d...

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Peso de abate de machos não-castrados para produção do bovino jovem. 2. Peso, idade e características da carcaça

Cited by 20 publications

References 12 publications

Animal performance and carcass characteristics of Nellore young bulls fed coated or uncoated urea slaughtered at different weights

Animal performance and carcass characteristics of Nellore young bulls fed coated or uncoated urea slaughtered at different weights

Carcass and meat traits of feedlot Nellore bulls fed different dietary energy sources

Meat yield of culled cow and steer carcasses

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